Beverage entertainment glass and storage medium

ABSTRACT

A beverage entertainment glass body includes a glass body having an upper opening, a fixing mechanism, a transparent part, a first reflecting mirror, a second reflecting mirror having light transmittance, and an image control part. The image control part displays a first image in a lower area of the image display screen and a second image in an upper area of the image display screen. The first and second reflecting mirrors are fixed in the glass body in an inclined state with respect to the image display screen. The second image, which is transmitted through the beverage and the transparent part, is reflected in a direction to the upper opening due to the second reflecting mirror. The first image, which is transmitted through the beverage and the transparent part, is reflected in the direction to the upper opening due to the first reflecting mirror, then reaches the upper opening after transmitted through the second reflecting mirror.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of PCT application No. PCT/JP2021/48587 filed on Dec. 27, 2021, which is based on and claims priority to Japanese Patent Applications No. 2021-039717 filed on Jan. 20, 2021, the disclosures of which are incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to a beverage entertainment glass that projects a three-dimensional image having depth onto a beverage glass using only one image display device, and a storage medium used in the beverage entertainment glass.

BACKGROUND

Glasses with various functions other than a function of containing beverages therein have been developed.

For example, Patent Document 1 discloses a beverage entertainment glass invented by the inventor of the present application. The beverage entertainment glass is equipped with an image display device fixed to a side of the glass and a reflecting mirror arranged inside a glass body, and the image of the image display device is simulated to be projected inside the glass.

Patent Document 2 discloses another beverage entertainment glass invented by the inventor of the present application. The entertainment glass is equipped with a video display device fixed to a side of the glass and a beam splitter placed inside a glass body, and is configured to simulate the image of the video display device by projecting it inside the glass.

PRIOR ART DOCUMENT(S) Patent Document(s)

-   [Patent Doc. 1] JP Patent 6488049 -   [Patent Doc. 2] JP Patent 6528162

Problem(s) to be Solved by the Invention

However, the devices disclosed in Patent Documents 1 and 2 had a difficulty that a three-dimensional image having depth was not projected onto an upper opening of the glass that is a drinking spot by using only one image display device or one image display screen (or image display surface).

In view of the above problem(s), the present invention provides a beverage entertainment glass that is configured to project a three-dimensional image having depth onto an upper opening of a glass body using only one image display device or one image display screen.

Another object of the present invention is to provide a storage medium storing a program to be used for the beverage entertainment glass.

Means for Solving the Problem(s)

A beverage entertainment glass body of the present invention includes a glass body that is a bottomed and cylindrical body, having an upper opening; a fixing mechanism that fixes an image display device attached to a side surface of the glass body, a transparent part that is provided on the side surface of the glass body, a first reflecting mirror that is arranged inside the glass body, a second reflecting mirror that is arranged inside the glass body, having light transmittance, and an image control part that controls images displayed on an image display screen of the image display device, wherein the image control part that displays a first image in a lower area of the image display screen and a second image in an upper area of the image display screen, the first reflecting mirror is fixed in the glass body in an inclined state with respect to the image display screen, the second reflecting mirror is fixed in the glass body in an inclined state with respect to the image display screen, the second reflecting mirror is fixed in a space between the first reflecting mirror and the upper opening, the second image, which is transmitted through the beverage in the glass body and the transparent part, is reflected in a direction to the upper opening due to the second reflecting mirror, the first image, which is transmitted through the beverage in the glass body and the transparent part, is reflected in the direction to the upper opening due to the first reflecting mirror, and the first image, which is reflected on the first reflecting mirror, reaches the upper opening after transmitted through the second reflecting mirror.

Further, either the first reflecting mirror or the second reflecting mirror may be configured to be detachable from the glass body, all the side surfaces of the glass body are transparent, the image control part displays either the first image or the second image in a vertically inverted state on the image display screen such that one of the first image and the second image is displayed upside down

Further, a first angle that is formed between the first reflecting mirror and the image display screen may be set 45 degrees or less, and the image control part displays one of the first image and the second image on the image display screen, the one of the first image and the second image being extended or enlarged in a vertical direction that corresponds to a longitudinal direction of the glass body.

Further, a second angle that is formed between the second reflecting mirror and the image display screen may be set 45 degrees or less, and the image control part displays one of the first image and the second image on the image display screen, the one of the first image and the second image being extended or enlarged in a vertical direction that corresponds to a longitudinal direction of the glass body.

Further, a first angle is formed between the first reflecting mirror and the image display screen, a second angle is formed between the second reflecting mirror and the image display screen, and the first angle may have an amount that is different from an amount of the second angle.

Further, when a first angle that is formed between the first reflecting mirror and the image display screen is set 45 degrees or less, the image control part may display the first image on the image display screen, the first image being extended or enlarged in the vertical direction.

Further, the first image may be extended or enlarged only in the vertical direction.

Further, when a second angle that is formed between the second reflecting mirror and the image display screen is set 45 degrees or less, the image control part may display the second image on the image display screen, the second image being extended or enlarged in the vertical direction

Further, the second image may be extended or enlarged only in the vertical direction.

Further, the image control part may be a computer software or a computer program.

Further, the second reflecting mirror may have a supporting rod having two ends, an end of the second reflecting mirror is joined to one end of the supporting rod, and the other end of the supporting rod is provided with a U-shaped frame having a U-shape to be combined with an end of the upper opening, and the second reflecting mirror may be fixed inside the glass body by inserting the end of the upper opening into the U-shaped frame.

Further, the first reflecting mirror may have a supporting rod having two ends, an end of the first reflecting mirror is joined to one end of the supporting rod, and the other end of the supporting rod is provided with a U-shaped frame having a U-shape to be combined with an end of the upper opening, and the first reflecting mirror may be fixed inside the glass body by inserting the end of the upper opening into the U-shaped frame.

Further, the first reflecting mirror and the second reflecting mirror may be configured such that the distance between the first reflecting mirror and the second reflecting mirror is variable.

A storage medium of the present invention stores a computer program for use in the beverage entertainment glass discussed above, wherein the computer program executes steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining a position and/or a size of the upper area on the image display screen from the computer memory, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.

Further, the computer program discussed above may execute steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining a position and/or a size of the upper area on the image display screen from the computer memory, executing vertically inverting process to the first image, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.

Further, the computer program discussed above may execute steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining a position and/or a size of the upper area on the image display screen from the computer memory, executing vertically inverting process to the second image, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.

Further, the computer program may execute steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining the position and/or the size of the upper area on the image display screen from the computer memory, executing extension or enlargement process to the first image in a vertical direction, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.

Further, the computer program may execute steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining the position and/or the size of the upper area on the image display screen from the computer memory, executing extension or enlargement process to the second image in a vertical direction, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.

Advantages of the Present Invention

The beverage entertainment glass of the present invention is configured to project a three-dimensional image(s) having depth, which is composed with two images, one image being on the side closer to the user (or closer image) and the other image being on the side farther from the user (or father image), using only one image display device or only one image display screen onto the upper opening of the glass body. Also, by turning ON/OFF only the closer image to the user, it is possible to switch between a three-dimensional image having depth and a non-three-dimensional image not having depth at any timing (or arbitrary timing of the user).

The beverage entertainment glass of the present invention is provided with an image control part that is configured to display an image that is vertically inverted (or upside down) so that both the vertically inverted image and the normal image that are not vertically inverted are simultaneously projected onto the upper opening of the glass. With such a projection, the image or character image projected to the upper opening of the beverage entertainment glass can be recognized from both sides of two users sitting facing each other.

The beverage entertainment glass of the present invention is provided with an image control part that is configured to display an image that is stretched (or enlarged) in the vertical direction so that, even if an angle between a reflecting mirror and a transparent part (more strictly speaking, an image display screen) arranged in the glass is equal to or less than 45 degrees, the user can see an image, which is not distorted, through the upper opening of the glass.

The beverage entertainment glass of the present invention is equipped with an image control part that is configured to display an image that is stretched (or enlarged) in the vertical direction so that, even if an angle between a reflecting mirror and a transparent part (more strictly speaking, an image display screen) arranged in the glass is less than 45 degrees, the user can see an image (or distortion free image) through the upper opening of the glass. With this structure, when the user drinks the beverage in the glass, a flow of the beverage in the glass is not disturbed by the reflecting mirror in the glass.

The beverage entertainment glass of the present invention projects a three-dimensional image having depth in the direction of the upper opening of the glass. Therefore, when the user drinks the beverage in the glass, the user can visually recognize the three-dimensional image developed in the beverage in the glass through the upper opening of the glass.

BRIEF DESCRIPTIONS OF THE DRAWINGS

FIGS. 1A and 1B are a perspective view and an upper cross-sectional view showing a beverage entertainment glass according to the first embodiment.

FIG. 2 is a cross-sectional view showing the beverage entertainment glass of the first embodiment.

FIGS. 3A and 3B are a perspective view and an upper cross-sectional view showing a beverage entertainment glass according to the second embodiment.

FIGS. 4A and 4B are a perspective view and an upper cross-sectional view when the reflecting mirror is separated from the glass body.

FIG. 5 is a perspective view showing a configuration example in which the reflecting mirror is detachable from the glass body.

FIGS. 6A and 6B are a perspective view and an upper cross-sectional view showing a beverage entertainment glass of the third embodiment.

FIGS. 7A and 7B are a perspective view and a cross-sectional view when the angle between the reflecting mirror and the image display screen is 45 degrees or less.

FIG. 8 is an upper cross-sectional view when the angle between the reflecting mirror and the image display screen is 45 degrees or less.

FIG. 9 is a flowchart diagram of a computer program for use in the beverage entertainment glass.

FIG. 10 is a flowchart diagram of a computer program using vertically inverted image process.

FIG. 11 is a flowchart diagram of a computer program using vertical direction image enlargement process.

DETAILED DESCRIPTIONS OF THE PREFERRED EMBODIMENTS First Embodiment of the Beverage Entertainment Glass

The first embodiment of the beverage entertainment glass of the present invention is shown with reference to the drawings.

As shown in FIG. 1 , beverage entertainment glass 1 includes glass body 10 that is a bottomed cylindrical body having upper opening 11, fixing mechanism 15 that fixes image display device 80 to the side surface of glass body 10, and image control part 100 that controls the image displayed on image display screen 81 of display device 80, first reflecting mirror 30 arranged inside glass body 10, and second reflecting mirror 31 having a light transmittance arranged inside glass body 10.

Glass body 10 is the bottomed cylindrical body having upper opening 11. Examples of the shape of glass body 10 include a normal cup shape as shown in FIG. 1A, a beer mug shape with a handle etc. Examples of materials for glass body 10 include glass and resin etc. The inside of glass body 10 is to be filled with beverage L.

Fixing mechanism 15 is a fixing mechanism that is configured to fix image display device 80 to glass body 10. In the example of FIG. 1A, the storage part provided at glass body 10 is used as fixing mechanism 15. Any type of fixing mechanism may be used as fixing mechanism 15 as long as it can fix image display device 80 to glass body 10, and fixing mechanism 15 may be a screw mechanism, a sucker mechanism, or the like.

Transparent part 12 is a transparent area provided on the side surface of glass body 10 to transmit an image displayed on image display screen 81 of image display device 80 to the inside of glass body 10. Examples of materials for transparent part 12 include transparent glass and transparent resin such as acrylic or the like. Transparent portion 12 may be formed on the entire side surface of glass body 10 like a normal glass cup (in the example of FIG. 1A, the entire side surface of glass body 10 is transparent part 12).

Image control part 100 is used to control the image displayed on the image display screen 81 of image display device 80. Image control part 100 displays first image 92 in lower area 82 of image display screen 81 of image display device 80 and second image 93 in upper area 83 of image display screen 81. Image control part 100 may be embedded in the bottom surface of glass body 10 or inside the housing of image display device 80 in the form of a specified IC, ASIC, or the like. Moreover, it may be implemented in a computer inside or outside the housing of image display device 80 as computer software or a computer program. In extreme cases, image control part 100 may be implemented as cloud software or application service provider (ASP) in a remote server computer. Image control part 100 may include a computer memory for storing first image 92, second image 93, and coordinate data of upper area 83 and lower area 82 in image display screen 81 thereinside.

First reflecting mirror 30 is disposed inside glass body 10 and used to reflect first image 92 displayed in lower area 82 of image display screen 81 toward upper opening 11 of glass body 10. The dashed arrow extending from first image 92 in FIG. 1A is an illustration of the image of light path P1 of first image 92 for the explanation. As light path P1 shown in FIG. 1A, first image 92 displayed in lower area 82 of image display screen 81 is reflected by first reflecting mirror 30 after passing through transparent part 12 and beverage L in glass body 10. First image 92 reflected by first reflecting mirror 30 reaches upper opening 11 after passing through second reflecting mirror 31. First reflecting mirror 30 is fixed inside glass body 10 in an inclined state with respect to image display screen 81 (or transparent part 12) as shown in FIG. 2 in order to reflect first image 92 toward upper opening 11. Based on the basic law of optics that the angle of incidence and the angle of reflection are equal, when angle a1 (first angle) between image display screen 81 and first reflecting mirror 30 is 45 degrees, first image 92 is projected toward upper opening 11 while maintaining an accurate shape without a vertical distortion (or collapsed). Therefore, from the viewpoint of image quality, angle a1 between image display screen 81 (or transparent part 12) and first reflecting mirror 30 is preferred to be about 45 degrees.

As an example of first reflecting mirror 30, a normal mirror using stainless steel, aluminum, or the like is considered.

Second reflecting mirror 31 is arranged inside glass body 10, and is used to reflect second image 93 displayed in upper area 83 of image display screen 81 of image display device 80 toward upper opening 11 of glass body 10. The dashed arrows extending from second image 93 in FIG. 1A are explanatory illustrations of the image of light path P2 of second image 93. Like light path P2 in FIG. 1A, second image 93 displayed in upper area 83 of image display screen 81 passes through transparent part 12 and beverage L in glass body 10, and then is reflected toward upper opening 11 by second reflecting mirror 31. Second reflecting mirror 31 is fixed inside glass body 10 in a state inclined with respect to image display screen 81 (or transparent part 12) as shown in FIG. 2 in order to reflect second image 93 toward upper opening 11. Based on the basic law of optics that the angle of incidence and the angle of reflection are equal, when angle a2 (second angle) between image display screen 81 and second reflecting mirror 31 is 45 degrees, second image 93 is projected toward upper opening 11 while maintaining an accurate shape without a vertical distortion (or collapsed). Therefore, from the viewpoint of image quality, angle a2 between image display screen 81 (or transparent part 12) and second reflecting mirror 31 is preferred to be about 45 degrees. Since second reflecting mirror 31 needs to transmit first image 92, it needs to have light transmittance. Examples of second reflecting mirror 31 include a half mirror and a deflecting mirror that moderately transmits light. Alternatively, a mesh-shaped metal sheet with meshes of about 0.1 mm (that is, a metal mesh sheet that transmits and reflects light with fine apertures) may be used as second reflecting mirror 31.

Since the second reflecting mirror 31 is positioned in a space between first reflecting mirror 30 and upper opening 11 and has light transmittance, user U can see composite image 90 of first image 92 (or lower area 82) and second image 93 (or upper area 83) through upper opening 11 as shown in FIG. 1B.

In beverage entertainment glass 1 of the present invention, as shown in FIG. 1A, when user U views composite image 90 from the side of upper opening 11, second image 93 of composite image 90 viewed by the user U appears closer than first image 92 of the same composite image 90. That is because second reflecting mirror 31 seen from user U is positioned in front of first reflecting mirror 30. Accordingly, composite image 90 is viewed as a three-dimensional (or pseudo-3D) image with depth when user U views composite image 90 from the side of upper opening 11. User U can drink beverage L in glass body 10 while visually recognizing this stereoscopic composite image 90 through upper opening 11. Also, by adjusting distance d between first reflecting mirror 30 and second reflecting mirror 31, the physical reflection positions of second image 93 and first image 92 are separated. The stereoscopic effect of composite image 90 projected onto upper opening 11 varies.

Distance d is defined as a distance between the top of the first reflecting mirror and the bottom of the second reflecting mirror. Distance d is measured along the longitudinal direction of the glass body. When distance d is small, the risk of contact between the upper edge of the first reflecting mirror and the second reflecting mirror increases. On the other hand, when distance d is large, it becomes difficult to create a space for accommodating the reflecting mirror in the glass. Therefore, the amount of distance d is preferably in a range of 2 to 10% of the length of the glass body.

Since the color and the refractive index of light are different for each type of beverage L (or each beverage having different the color and the refractive index of light), it is possible to change the appearance of composite image 90 by changing the type of beverage L in beverage entertainment glass 1 of the present invention.

Further, as a method of fixing first reflecting mirror 30 and second reflecting mirror 31 with respect to image display screen 81 in an inclined state inside glass body 10, a fixing method using a hook mechanism, heat welding, or the like is available.

When the area of the reflecting mirrors placed in the glass is too small, composite image 90 will be too small and the user will not be able to recognize the shape and color of composite image 90. Considering the point, as shown in FIG. 4B, first reflecting mirror 30 and second reflecting mirror 31 need to have an area that is at least ⅓ or more (preferably 50% or more) of the area of the bottle body, which is seen from the top viewpoint.

In beverage entertainment glass 1 of the present invention, as shown in FIG. 1A and FIG. 2 , image control part 100 divides image display screen 81 into upper area 83 and lower area 82 and independent images (first image 92 and second image 93) are displayed in these areas, and light path P1 and light path P2 are set so that these images are combined at upper opening 11 with first reflecting mirror 30 and second reflecting mirror 31 having light transmittance. Therefore, only one image display device (or one image display surface) realizes to display composite image 90 having a depth that consists of first image 92 (back side image) and second image 93 (front side image) in the direction of upper openings 11 of glass body 10.

Second Embodiment of the Beverage Entertainment Glass

Hereinafter, the second embodiment of the beverage entertainment glass of the present invention will be shown with reference to the drawings. Parts and elements having the same configuration as the first embodiment are denoted by the same reference numerals, and explanations thereof are omitted.

As shown in FIG. 3A, in beverage entertainment glass 1 of the present embodiment, first image 92 or second image 93 (either one of the two) is displayed on image display screen 81 in a vertically inverted state (or upside down). By doing so, first image 92 (the character image A in FIG. 3A) and second image 93 (the character image T) are vertically inverted each other. When there are two users across glass body 10, such as user U1 and user U2 in FIG. 3A, user U1 can read (or recognize) the character (A) in first image 92 and user U2 can read (or recognize) the character (T) in second image 93.

Additionally, when first image 92 and second image 93 have the same color and there are many overlapping portions of first image 92 and second image 93 in composite image 90, it may be difficult for user U1 to recognize first image 92 (or user U2 recognizing second image 93). Therefore, it is preferable to select images having different colors for first image 92 and second image 93 as much as possible.

As shown in FIG. 4 , when user U2 does not exist or composite image 90 is not necessary, the reflection of second image 93 may be canceled (or eliminated) by removing second reflecting mirror 31 from glass body 10.

Since second image 93 is vertically inverted with respect to first image 92 as shown in FIG. 4 in beverage entertainment glass 1 of the present embodiment, first image that is reflected by first reflecting mirror 30 and second image 93 that is transmitted through glass body 10 (transparent image 91 in FIG. 4 ) seen from the side of user U1 are not vertically inverted, and user 1 accurately view both images simultaneously or alternately without moving. In addition, as shown in FIG. 4 , the side surfaces of glass body 10 of beverage entertainment glass 1 of the present embodiment are all transparent.

Not only first reflecting mirror 30 but also second reflecting mirror 31 may be detachable from glass body 10. When first reflecting mirror 30 is removed from glass body 10, first image 92 can be canceled. When second reflecting mirror 31 is removed from glass body 10, second image 93 can be canceled.

The physical reflection positions of second image 93 and first image 92 are separated by elongating distance d between first reflecting mirror 30 and second reflecting mirror 31. Accordingly, the stereoscopic effect of composite image 90 that is projected onto upper opening 11 varies. Therefore, a plurality of second reflecting mirrors 31 (or first reflecting mirrors 30) having different fixed positions in the glass may be prepared in advance and exchanged to change distance d.

FIG. 5 shows a configuration example in which either first reflecting mirror 30 or second reflecting mirror 31 is detachable from (or attachable to) glass body 10.

As shown in FIG. 5 , supporting rod 34 is provided (so that first reflecting mirror 30 is fixed in glass body 10). Supporting rod 34 may be for fixing second reflecting mirror 31 in the glass such that second reflecting mirror 31 is fixed in the glass. An end of first reflecting mirror 30 (or second reflecting mirror 31) is joined to one end of supporting rod 34, and the other end of supporting rod 34 is provided with U-shaped frame 33 having a U-shape to be combined with an end of upper opening 11 of glass body 10. First reflecting mirror 30 is fixed inside glass body 10 by inserting the end of upper opening 10 into U-shaped frame 33. In addition, it is preferred that supporting rod 34 and first reflecting mirror 30 (or second reflecting mirror 31) are joined or welded in an inclined state so that, when first reflecting mirror 30 (or second reflecting mirror 31) is fixed in glass body 10, first reflecting mirror 30 (or second reflecting mirror 31) is fixed to image display screen 80 or transparent part 12 in an inclined state. The advantage(s) of first reflecting mirror 30 or second reflecting mirror 31 in the configuration example shown in FIG. 5 is that user U does not need to dip his or her hand into beverage L in glass body 10 when operating to detach (or attach) the reflecting mirror.

Third Embodiment of the Beverage Entertainment Glass

Hereinafter, the third embodiment of the beverage entertainment glass of the present invention will be shown with reference to the drawings. Parts and elements having the same configuration as the first embodiment are denoted by the same reference numerals, and explanations thereof are omitted.

In beverage entertainment glass 1 of the present embodiment, as shown in FIG. 6A, because angle a1 that is formed between first reflecting mirror 30 and image display screen 81 and/or angle a2 that is formed between second reflecting mirror 31 and image display screen 81 are equal to or less than 45 degrees, an image that image control part 100 extended or enlarged in the vertical direction is displayed on image display screen 81 (to prevent composite image 90 from being distorted in the vertical direction, or up-down direction, as shown in FIG. 8 ).

In order not to disturb the flow of beverage L when the user tilts glass body 10 and drinks beverage L, as shown in FIG. 7B, it is necessary to make angle a1 that is formed between first reflecting mirror 30 and image display screen 81 or angle a2 that is formed between second reflecting mirror 31 and image display screen 81 as small as possible. However, when angle a1 or angle a2 is set to a value smaller than 45 degrees (according to the optical basic law that an incident angle and a reflection angle are equal), composite image 90 viewed by user U through upper opening 11 is distorted in the up-down direction as shown in FIG. 7A and FIG. 8 . In order to prevent this, as shown in FIG. 6A, an image that has been extended or enlarged in the vertical direction by image control part 100 in advance (that is, the vertical direction enlarged image of first image 92 or the vertical direction enlarged image of second image 93) should be displayed (or output) on image display screen 81. With this ingenuity, even when the angle formed between the reflecting mirror and image display screen 81 (or transparent part 12) is smaller than 45 degrees, user U visually recognizes composite image 90 from the upper opening 11, the composite image not being collapsed or distorted in the vertical direction as shown in FIG. 6B.

The extension ratio in the vertical direction is calculated from 1/tan θ, where θ is an angle between the reflecting mirror and the image display screen. In other words, when θ=30 degrees, the image should be stretched 1.73 times in the vertical direction. Namely, the magnification rate in the vertical direction is 1/tan θ times. When θ=45 degrees, the extension ratio is 1 time (or 100%), so magnification in the vertical direction is not necessary. Assuming, for example, that the design is to be variable from θ=45 degrees to ±1 degree, it is ideal to be able to adjust the expansion ratio within a range of at least ±4% (strictly speaking, +3.4311 [%] to −3.553 [%]).

Note that the magnification in the horizontal direction is not necessary/undesirable because it causes distortion of the image reflected in the reflecting mirror. In this embodiment, the magnification is executed only in the vertical direction. Putting it another way, the aspect ratio of the image is not the same after the enlargement process.

Furthermore, angle a1 formed between first reflecting mirror 30 and image display screen 81 (or transparent part 12) and angle a2 formed between second reflecting mirror 31 and image display screen 81 (or transparent part 12) may be different. Because the stretch or enlargement process of the image in the vertical direction puts a load on the computer, and the flow of beverage L near upper opening 11 is important to be considered when the user drinks beverage L, the load of the computer due to the stretch or enlargement process of the image in the vertical direction may be reduced to ½ by setting only angle a2 45 degrees or less and by setting angle a1 45 degrees (that is, only second image 93 may be processed by the vertical direction enlargement process of the image).

FIG. 9 is a flowchart diagram of a computer program for use in beverage entertainment glass 1.

In step 1, first image 92 is obtained from a computer memory, second image 93 is obtained from the computer memory, and positions and/or sizes of lower area 82 and upper area 83 on image display screen 81 are obtained from the computer memory. In step 3, first image 92 is displayed in lower area 82 and second image 93 is displayed in upper area 83, after which the program ends.

FIG. 10 is a flowchart diagram of a computer program for a case where the vertically inverted process is executed in beverage entertainment glass 1 of the present invention.

In step 1, first image 92 is obtained from a computer memory, second image 93 is obtained from the computer memory, and positions and/or sizes of lower area 82 and upper area 83 on image display screen 81 are obtained from the computer memory. In step 2A, the vertically inverting process is executed to either first image 92 or second image 93. In step 3, first image 92 is displayed in lower area 82 and second image 93 is displayed in upper area 83, after which the program ends.

As for an algorithm for the vertically inverting process of the image, a known algorithm used in photo retouching software or the like may be used.

FIG. 11 is a flowchart diagram of a computer program for a case where the vertical direction image enlargement process is executed in beverage entertainment glass 1 of the present invention.

In step 1, first image 92 is obtained from a computer memory, second image 93 is obtained from the computer memory, and positions and/or sizes of lower area 82 and upper area 83 on image display screen 81 are obtained from the computer memory. In step 2B, first image 92 and/or second image 93 are processed with the extension or enlargement process in the vertical direction. In step 3, first image 92 is displayed in lower area 82 and second image 93 is displayed in upper area 83, after which the program ends.

As for an algorithm for the stretch or enlargement process of the image in the vertical direction, a known algorithm used in photo retouching software or the like may be used.

The present invention uses only one image display device or only one image display screen to project a three-dimensional image having depth, which is composed of an image closer to the user and an image farther from the user, onto the upper opening of the glass body. Also, it is realized to switch between a three-dimensional image having depth and a non-three-dimensional image at an arbitrary timing by turning only the image on the side closer to the user ON or OFF. In addition, it is used by two users at the same time, and even when if the reflecting mirror tilts so that the flow of the beverage in the glass body is not disturbed by the reflecting mirror in the glass body, the image seen from the user(s) is not distorted. As described above, the present invention has industrial applicability.

LEGENDS

-   -   U: user     -   U1: user     -   U2: user     -   L: beverage (liquid)     -   P1: light path     -   P2: light path     -   a1: angle (first angle formed between the first reflecting         mirror and the image display screen)     -   a2: angle (second angle formed between the second reflecting         mirror and the image display screen)     -   d: distance (distance between the first reflecting mirror and         the second reflecting mirror)     -   1: beverage entertainment glass     -   10: glass body     -   11: upper opening     -   12: transparent part     -   15: fixing mechanism     -   30: first reflecting mirror     -   31: second reflecting mirror     -   33: U-shaped frame     -   34: supporting rod     -   80: image display device     -   81: image display screen (or image display surface)     -   82: lower area     -   83: upper area     -   90: composite image     -   91: transparent image     -   92: first image     -   93: second image     -   93: vertical direction enlarged image (Vertical direction         stretch image)     -   100: image control part 

What is claimed is:
 1. A beverage entertainment glass body, comprising: a glass body that is a bottomed and cylindrical body, having an upper opening; a fixing mechanism that fixes an image display device attached to a side surface of the glass body, a transparent part that is provided on the side surface of the glass body, a first reflecting mirror that is arranged inside the glass body, a second reflecting mirror that is arranged inside the glass body, having light transmittance, and an image control part that controls images displayed on an image display screen, which is an image display surface, of the image display device, wherein the image control part that displays a first image in a lower area of the image display screen and a second image in an upper area of the image display screen, the first reflecting mirror is fixed in the glass body in an inclined state with respect to the image display screen, the second reflecting mirror is fixed in the glass body in an inclined state with respect to the image display screen, the second reflecting mirror is fixed in a space between the first reflecting mirror and the upper opening, the second image, which is transmitted through the beverage in the glass body and the transparent part, is reflected in a direction to the upper opening due to the second reflecting mirror, the first image, which is transmitted through the beverage in the glass body and the transparent part, is reflected in the direction to the upper opening due to the first reflecting mirror, and the first image, which is reflected on the first reflecting mirror, reaches the upper opening after transmitted through the second reflecting mirror.
 2. The beverage entertainment glass according to claim 1, wherein either the first reflecting mirror or the second reflecting mirror is configured to be detachable from the glass body, all the side surfaces of the glass body are transparent, the image control part displays either the first image or the second image in a vertically inverted state on the image display screen such that one of the first image and the second image is displayed upside down.
 3. The beverage entertainment glass according to claim 1, wherein a first angle that is formed between the first reflecting mirror and the image display screen is set 45 degrees or less, and the image control part displays one of the first image and the second image on the image display screen, the one of the first image and the second image being extended or enlarged in a vertical direction that corresponds to a longitudinal direction of the glass body.
 4. The beverage entertainment glass according to claim 1, wherein a second angle that is formed between the second reflecting mirror and the image display screen is set 45 degrees or less, and the image control part displays one of the first image and the second image on the image display screen, the one of the first image and the second image being extended or enlarged in a vertical direction that corresponds to a longitudinal direction of the glass body.
 5. The beverage entertainment glass according to claim 1, wherein a first angle is formed between the first reflecting mirror and the image display screen, a second angle is formed between the second reflecting mirror and the image display screen, and the first angle has an amount that is different from an amount of the second angle.
 6. The beverage entertainment glass according to claim 3, wherein the image control part displays the first image on the image display screen, the first image being extended or enlarged in the vertical direction.
 7. The beverage entertainment glass according to claim 6, wherein the first image is extended or enlarged only in the vertical direction.
 8. The beverage entertainment glass according to claim 4, wherein the image control part displays the second image on the image display screen, the second image being extended or enlarged in the vertical direction.
 9. The beverage entertainment glass according to claim 8, wherein the second image is extended or enlarged only in the vertical direction.
 10. The beverage entertainment glass according to claim 1, wherein the image control part is a computer software or a computer program.
 11. The beverage entertainment glass according to claim 2, wherein the second reflecting mirror has a supporting rod having two ends, an end of the second reflecting mirror is joined to one end of the supporting rod, and the other end of the supporting rod is provided with a U-shaped frame having a U-shape to be combined with an end of the upper opening, and the second reflecting mirror is fixed inside the glass body by inserting the end of the upper opening into the U-shaped frame.
 12. The beverage entertainment glass according to claim 2, wherein the first reflecting mirror has a supporting rod having two ends, an end of the first reflecting mirror is joined to one end of the supporting rod, and the other end of the supporting rod is provided with a U-shaped frame having a U-shape to be combined with an end of the upper opening, and the first reflecting mirror is fixed inside the glass body by inserting the end of the upper opening into the U-shaped frame.
 13. The beverage entertainment glass according to claim 2, wherein the first reflecting mirror and the second reflecting mirror are configured such that the distance between the first reflecting mirror and the second reflecting mirror is variable.
 14. A storage medium storing a computer program for use in the beverage entertainment glass according to claim 1, wherein the computer program executes steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining a position and/or a size of the upper area on the image display screen from the computer memory, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.
 15. A storage medium storing a computer program for use in the beverage entertainment glass according to claim 2, wherein the computer program executes steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining a position and/or a size of the upper area on the image display screen from the computer memory, executing vertically inverting process to the first image, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.
 16. A storage medium storing a computer program for use in the beverage entertainment glass according to claim 2, wherein the computer program executes steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining a position and/or a size of the upper area on the image display screen from the computer memory, executing vertically inverting process to the second image, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.
 17. A storage medium storing a computer program for use in the beverage entertainment glass according to claim 3, wherein the computer program executes steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining the position and/or the size of the upper area on the image display screen from the computer memory, executing extension or enlargement process to the first image in a vertical direction, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory.
 18. A storage medium storing a computer program for use in the beverage entertainment glass according to claim 4, wherein the computer program executes steps following: obtaining the first image and the second image from a computer memory, obtaining a position and/or a size of the lower area on the image display screen from the computer memory, obtaining the position and/or the size of the upper area on the image display screen from the computer memory, executing extension or enlargement process to the second image in a vertical direction, displaying the first image in the lower area with reference to the position and/or the side of the lower area obtained from the computer memory, and displaying the second image in the upper area with reference to the position and/or the side of the upper area obtained from the computer memory. 